A constitutional monarchy is a form of monarchical government (that is, exercised by a king or queen) in which there is a separation of powers and therefore the king shares political power with other institutions, such as a parliament and a court of law.

Legitimacy is a characteristic attributed to everything that complies with what is imposed by legal norms and is considered a good for society, that is, everything that is legitimate. Normally, this is a characteristic that is frequently discussed in the legal field, in which it states that a situation or phenomenon is considered correct according to the parameters established by the system of laws and regulations.